Polymerization efficiency of different photocuring units through ceramic discs
Polymerization efficiency of different photocuring units through ceramic discs
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DOI：
10.2341/04-188
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发表时间：
2006-01-01
影响因子：
2.2
通讯作者：
Schmalz, G
中科院分区：
文献类型：
--
作者：
Jung, H;Friedl, KH;Schmalz, G
本研究通过固化深度和维氏显微硬度（VHN）的不同厚度的陶瓷盘，比较了各种光源和曝光模式的能力，以激发双固化树脂复合材料。制备陶瓷样品（360）（Empress 2 [Ivoclar Vivadent]，颜色300，直径4 mm，高度1或2 mm）并根据ISO 4049插入钢模具中，之后放置具有和不具有自固化催化剂的双固化复合树脂粘接材料（Variolink 11 [Ivoclar Vivadent]）。所使用的光固化单元是常规的卤素固化单元，（Elipar TriLight [3 M/ESPE] 40秒），高功率卤素固化单元（Astralis 10 [Ivoclar Vivadent]，20秒），等离子弧固化单元（Aurys [Degre K]，10秒或20秒）或不同的发光二极管（LED）固化单元（Elipar FreeLight I [3 M/ESPE] 40秒，Elipar FreeLight II [3 M/ESPE] 20秒，LuxOmax [Akeda] 40秒，e-Light [GC] 12秒或40秒）。根据ISO 4049评估陶瓷盘下的固化深度，并测定距陶瓷盘底部0.5和1.0 min距离处的VHN（ISO 6507-1）。确定每组（n=10）的中位数以及第25和第75次评分，并使用Mann-Whitney-U检验进行统计学分析（p
This study compared the ability of a variety of light sources and exposure modes to polymerize a dual-cured resin composite through ceramic discs of different thicknesses by depth of cure and Vickers microhardness (VHN). Ceramic specimens (360) (Empress 2 [Ivoclar Vivadent], color 300, diameter 4 mm, height 1 or 2 mm) were prepared and inserted into steel molds according to ISO 4049, after which a dual-cured composite resin luting material (Variolink 11 [Ivoclar Vivadent]) with and without self-curing catalyst was placed. The light curing units used were either a conventional halogen curing unit (Elipar TriLight [3M/ESPE] for 40 seconds), a high-power halogen curing unit (Astralis 10 [Ivoclar Vivadent] for 20 seconds), a plasma arc curing unit (Aurys [Degre K] for 10 seconds or 20 seconds) or different light emitting diode (LED) curing units (Elipar FreeLight I [3M/ESPE] for 40 seconds, Elipar FreeLight II [3M/ESPE] for 20 seconds, LuxOmax [Akeda] for 40 seconds, e-Light [GC] for 12 seconds or 40 seconds). Depth of cure under the ceramic discs was assessed according to ISO 4049, and VHN at 0.5 and 1.0 min distance from the ceramic disc bottom was determined (ISO 6507-1). Medians and the 25(th) and 75(th) percentiles were determined for each group (n=10), and statistical analysis was performed using the Mann-Whitney-U-test (p